or no ? … how to explain this picture ? iKatastr was indeed attempt to introduce new term for accessing cadastral data in Czech Republic, and it launched on iOS, Android and web 5 years ago, no public advertising, no ads at all… Anyway I like this picture, and it is kind of surprising that GISCloud nor mangomap doesn’t enjoy the same level of trending according to Google Trends. I think reality is different
..let’s look on another measure – site visits using simlarweb.com
Looks like Google Trends takes into consideration # of visits and is more weighted than media coverage ? Or does the mobile presence of app iKatastr adds so much ‘ads’ to the final chart ?
– OpenLayers knihovna dělala problémy ve verzi 2.9 (dlaždice se uplně rozjížděly a neseděly v IE), OL byla povýšena na 2.12, protože ve verzi 2.13 je scrollování myší (zoom in/out) špatné.
– iKatastr přešel z původního OLON formátu použivaném v MapShake na jednodušší konfiguraci, více propojenou s OL.
– tyto dvě výše uvedené modifikace byly důvodem toho, že jsem povypínal iKatastr v souřadném systému JTSK a UTM – původní formát OLON tohle umožňoval, ale na druhou stranu to přineslo zbytečnou komplexnost kódu a nevím jestli to někdo vůbec používal (asi ne, nikdo neprotestoval) . Pokud by se měly tyto souřadné systémy do iKatastru vrátit, bude to dělané formou separátní stranky, tak jako “Ptačí pohled”
– “Ptačí pohled” je k dispozici při velkém zoom – objeví se odkaz , po jehož kliknutí se načte nová stránka s krásnými šikmými snímky od Seznamu (Mapy.cz) . Ne všechny mapové podklady umí hlubší zoom, takže např. u Bing map (Microsoft) se tohle tlačítko neobjeví.
Update 30.7.2014 Ukončeno na žádost Seznam.cz. Puvodni funkce zachycena na tomto videu.
– Bing podklady byly přidány jako náhražka Google street – jsou rychlé a nemusí se používat Google ‘wrapper’ – Bing dlaždice lze přímo legálně konzumovat. Nicméně skvělé satelitní snímky od Googlu jsou k dispozici také.
-Udělal jsem zjednodušení legendy – uživatel nemusí překlikávat do inverzního katastru, pokud má letecké snímky – automaticky se to přehodí.
– ČÚZK spustil GetFeature info službu – takže pokud se trefíte klikem na definiční bod budovy nebo parcely objeví se základní informace.
– Experimentálně byl přidán odkaz na strážce katastru vpravo nahoře – služba umožňuje hlídání změn v katastru nemovitostí.
– IE 8,9 to je samostatná kapitola, ale vše by mělo fungovat i na těchto už exotických verzích.
Nakonec za 6 měsíců ikatastr.cz hostil : 372.000 návštěv od 174,233 uživatelů, kteří shlédli celkem 488,397 stránek, strávili tam sumárně víc než 1 rok (388 dnů) a naklikali tolik dotazů, že se to nevleze na stránku
Děkuji věrným uživatelům aplikace iKatastr.cz, kteří mi dali důvod udělat upgrade aplikace !
Made quick test of these 2 +1 HTML5 renderers on iOS running inside iOS app in the WebView, that is without Nitro acceleration. All run on iPad Air
Leaflet 0.7 : great , works fine, everywhere, doesn’t load while dragging map (on mobile only) , runs on Microsoft Surface too.
OpenLayers 3 beta 1 : runs fine too, loads map during dragging, seems like smaller framerate, can over zoom OSM, doesn’t run in Microsoft Surface well.
Seznam Mapy Api v 4 – proprietary renderer from Seznam , bad rendering on iOS, missing tiles, nice map sources
Videos and original web pages used: – screencasted by AirPlay – that is directly from iPad Air:
I have put together simple web app that overlays cadastral maps with otrophoto , if you zoom more you will see bird’s eye high quality images, that you can rotate (left upper corner arrows) it is not possible yet to overlay in the bird’s eye WMS overlay with cadastral info, however I was amazed with the quality of the images covering whole Czech Republic and in better quality than Google (provider called Seznam is local big Google rival) Rendering is not great either as their rendering is proprietary and not of the quality as OpenLayers or Leaflet. Anyway the information coming from oblique images , or let’s say ‘predefined camera positions’ is very useful of understanding spatial situation in the respective area. May be the fact that user doesn’t need to move fully in 3D space but is limited somehow is better than full 3D ‘free form’ , ‘game-like’ navigation – one can be easily lost there. Also I found it equal or even better than information provided by street view data (what google provides) as street view is ‘too close’ and I have found myself quite often lost in the ‘street-view’
iKatastr.cz has reached on 20th September 1 million visits. At the same time it reached 7,7 million clicks on map. This is result of nearly 3 years of site running.
“Mapy CUZK” has been just released on both Android and iOS platforms by “CUZK”( “Czech Office For Surveying, Mapping and Cadastre”). The app enables to see various map compositions from OGC services, perform query and search in the map. it is based the same engine that powers iKatastr2, enables flexible extensions and uses modern myVR rendering engine.
Following graphs shows more than 2 years overview of project iKatastr on various platforms – web site, iOS, Android. Project iKatastr does simple stuff – shows cadastral map and enables user to tap on map and get information from the parcel registry (e.g. owner) in Czech Republic. Except Android version, all started at the same time 2 years ago for web, iPhone and iPad. All of the users of iKatastr are solely Czech consumers and thus reflect situation in the Czech app stores and web.
first graph shows how monthly sessions have evolved. Original thought that mobile launch of app iKatastr would boost web site visit failed. However after 15 months of runing iKatastr.cz web site and rephrasing some keywords for SEO it started dramatically to gain visits. Decline of iOS version in last 4 months is caused most likely by new project iKatastr2 that replaces the original one on iOS. iKatastr2 statistics is not yet revealed here.
second graph shows distribution of sessions among all platforms of iKatastr. 75% of all iKatastr sessions comes from mobile devices, while only 25% comes from web.
Made quick test of these 2 +1 HTML5 renderers on iOS running inside iOS app in the WebView, that is without Nitro acceleration. All run on iPad Air
